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usb: dwc3-meson-g12a: Convert to platform remove callback returning void

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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart from
emitting a warning) and this typically results in resource leaks. To improve
here there is a quest to make the remove callback return void. In the first
step of this quest all drivers are converted to .remove_new() which already
returns void. Eventually after all drivers are converted, .remove_new() is
renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20230517230239.187727-18-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2023-05-18 01:01:19 +02:00 committed by Greg Kroah-Hartman
parent 039e3dede5
commit 3ffea6e0f3
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/dwc3/dwc3-meson-g12a.c
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@ -826,7 +826,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
return ret;
}
static int dwc3_meson_g12a_remove(struct platform_device *pdev)
static void dwc3_meson_g12a_remove(struct platform_device *pdev)
{
struct dwc3_meson_g12a *priv = platform_get_drvdata(pdev);
struct device *dev = &pdev->dev;
@ -849,8 +849,6 @@ static int dwc3_meson_g12a_remove(struct platform_device *pdev)
clk_bulk_disable_unprepare(priv->drvdata->num_clks,
priv->drvdata->clks);
return 0;
}
static int __maybe_unused dwc3_meson_g12a_runtime_suspend(struct device *dev)
@ -961,7 +959,7 @@ MODULE_DEVICE_TABLE(of, dwc3_meson_g12a_match);
static struct platform_driver dwc3_meson_g12a_driver = {
.probe = dwc3_meson_g12a_probe,
.remove = dwc3_meson_g12a_remove,
.remove_new = dwc3_meson_g12a_remove,
.driver = {
.name = "dwc3-meson-g12a",
.of_match_table = dwc3_meson_g12a_match,